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Polarity Probing Two-Photon Fluorophores Based on [2.2]Paracyclophane
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  • Polarity Probing Two-Photon Fluorophores Based on [2.2]Paracyclophane
  • Polarity Probing Two-Photon Fluorophores Based on [2.2]Paracyclophane
저자명
Woo. Han-Young,Korystov. Dmitry,Jin. Young-Eup,Suh. Hong-Suk
간행물명
Bulletin of the Korean Chemical Society
권/호정보
2007년|28권 12호|pp.2253-2260 (8 pages)
발행정보
대한화학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

A series of tetra donor substituted [2.2]paracyclophane-based two-photon absorption (TPA) fluorophores were synthesized in neutral and cationic forms. The imaging activity of overall set of fluorophores was studied by the two-photon induced fluorescence (TPIF) method in a range of solvents. We also measured a clear progression toward a longer photoluminescence lifetime with increasing solvent polarity (intrinsic photoluminescence lifetime, τi: ~2 ns in toluene → 12-16 ns in water). The paracyclophane fluorophores with this unique property can be utilized as an optical polarity probe for the biomolecular substrates. The combined measurement of the two-photon fluorescence microscopy (TPM) cell image and TPIF lifetime can give us a better understanding of the biological processes and local environments in the cells.